
Tankless Water Heaters in Cumberland, Maine
Endless Hot Water · Space-Saving Design · 20+ Year Lifespan
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Tankless Water Heaters for Cumberland Homeowners

Cumberland sits in Cumberland County, part of the territory Aces Highlands covers out of 508 Riverside St Unit 1 in Portland every week — so a call for tankless water heaters gets a technician who already knows the local housing and codes, not a first-timer.
Tankless water heaters heat water on demand, providing endless hot water while saving space and energy. Aces Highlands installs propane and electric tankless systems properly sized for your household needs.
A tankless water heater heats water only when you need it, eliminating the standby energy loss of keeping a tank of water hot around the clock. This can reduce your water heating costs by 24-34% depending on your usage.
We install tankless units from trusted brands and ensure proper gas line sizing, venting, and water flow for optimal performance. Electric tankless models may require an electrical panel upgrade to support the higher amperage draw. Not every home is a good candidate for tankless — we evaluate your situation honestly and recommend the best option.
Tankless water heaters last 20+ years with proper maintenance, compared to 10-12 years for tank models. While the upfront cost is higher, the longer lifespan and energy savings make tankless a smart long-term investment for many homeowners. We offer financing to help spread the cost over time.
Why Cumberland Calls Aces Highlands
- Cumberland County is our backyard, and Cumberland is on that route every week
- A straight diagnosis and a clear price before we touch anything — no upsell
- Booking stays quick because we do not overbook the schedule
- Licensed and insured, with a track record of Google reviews from real jobs
Cumberland Homes and What They Need
Cumberland's housing splits between an old village core and decades of newer subdivisions. Census estimates put the median home at 1984, with about 15 percent built before 1940, in Cumberland Center, on the Foreside and on the older farms of West Cumberland, and another 15 percent built since 2010. Roughly 40 percent went up between 1980 and 2009, the era of the town's many subdivision neighborhoods. About 82 percent of homes are single-family detached. The older farmhouses often have fieldstone foundations, damp basements, knob-and-tube or cloth-sheathed wiring and heating added in stages, while 1990s and 2000s houses are reaching the age when original boilers, furnaces and water heaters come due. Where a house has radiant floor heating, its boiler and mixing controls need periodic attention.
Water Supply and Drains in Cumberland
The Portland Water District supplies both water and wastewater service in Cumberland, and the town's sewage is treated across the line at Falmouth's plant on Clearwater Drive before discharge to the Presumpscot estuary. Public mains follow the more settled parts of town, and homes on rural roads beyond them, including much of West Cumberland, depend on private wells and septic systems. Those wells draw from bedrock, and across Cumberland County more than 17 percent of tested private wells have exceeded Maine's arsenic guideline; Maine CDC recommends testing for arsenic, uranium and radon every three to five years and treating where results call for it. Treatment equipment, well tanks and water heaters all share basement space, so plan them together. On septic, keep grease and wipes out of the lines, and call for drain cleaning at the first slow drain rather than after a backup.

Getting to Know Cumberland
Cumberland split off from North Yarmouth in 1821 and has hosted the Cumberland Fair — one of Maine's great agricultural fairs — every September since 1868. In a rarer piece of town history, Chebeague Island, part of Cumberland for 184 years, voted to become its own town and officially separated on July 1, 2007.
Cumberland's larger lots and farmhouse-style homes are well suited to multi-zone heating — one reason ductless mini-split systems and radiant setups are among our most requested jobs here.
Local & Independent — Not a Franchise
Aces Highlands is a locally owned Portland, Maine company serving Cumberland — not a national franchise. Nobody on our crew works on commission, so there is no incentive to sell you more than the job needs. Getting invited back is the only metric that matters here.
How a Tankless Water Heater Works
- Flow sensor — detects water flow and triggers ignition
- Burner — fires on demand, no standby tank
- Heat exchanger — heats the water as it passes through
- Hot water out — instantly, only when it's needed
- Compact — mounts on the wall, saves floor space
Homeowner Guide
Tankless Water Heaters: Sizing by Flow Rate, Not Gallons
A tankless water heater is sized completely differently from a tank, and misunderstanding that is the most common reason a homeowner ends up disappointed with one.
Read the Full GuideMore Water Heaters
Tankless Water Heaters is part of our full water heaters lineup. Explore the details or browse everything we offer in Cumberland.
Tankless Water Heaters DetailsAll Services in CumberlandService Info
Codes & Permits for Tankless Water Heaters in Cumberland
In Cumberland, plumbing permits come from the Local Plumbing Inspector at the Town of Cumberland Code Enforcement Office (290 Tuttle Road, Cumberland, ME 04021, (207) 829-2207). With 8,754 residents, Cumberland is required to enforce the Maine Uniform Building and Energy Code (MUBEC). Cumberland stretches from Cumberland Foreside on Casco Bay to West Cumberland bordering Windham, and became a separate town after splitting from North Yarmouth in March 1821.
- Maine's 2021 energy code (IECC, part of MUBEC) requires insulation with an R-value of at least R-3 on 3/4-inch and larger hot-water piping inside conditioned space, and on recirculation piping, piping outside conditioned space, and buried piping. maine.gov
- A propane or natural gas-fired water heater installation or connection requires a Maine Fuel Board Propane and Natural Gas Technician license. mainelegislature.org
- Maine's adopted plumbing code (2021 Uniform Plumbing Code) requires every water heater's potable-water connections and temperature/pressure relief valve to meet UPC installation requirements, including a proper gravity discharge line. up.codes
- Every Maine municipality must annually appoint at least one Local Plumbing Inspector (LPI), who does not have to live in that town, to issue plumbing permits and enforce the state's plumbing rules and Subsurface Wastewater Disposal (septic) rules locally. mainelegislature.org
How Aces Highlands Handles Tankless Water Heaters in Cumberland
- Portland Water District covers most of Cumberland (Sebago Lake, treated at PWD's Standish treatment plant; Cumberland is one of PWD's combined water-and-wastewater communities) — homes still on a private well get the well and pressure tank looked at as part of the same visit.
- Where Summit Natural Gas of Maine (Cumberland is also on Unitil's Maine gas-service town list) has a main nearby, gas is usually the lowest-cost tankless water heaters option in Cumberland; off the main, propane, electric and heat-pump units all work.
- The swap is permitted through the Town of Cumberland Code Enforcement Office, the relief valve gets a proper gravity discharge line, and any gas connection is made under our Maine Fuel Board license.
Cumberland Center's public library on Main Street, a longstanding gathering point in the town's small village core.
Street View © Google
Why homeowners choose Aces Highlands
We show up when we say
We show up on time, as promised, and complete the work with clean professionalism.
Pricing upfront, before work starts
Honest diagnostics and a clear price before any work begins — no surprises on the invoice.
Done right the first time
HVAC, plumbing and electrical done right the first time — backed by our workmanship guarantee and 100% satisfaction guarantee.
Locally owned in Portland, Maine · Serving Greater Portland and Southern Maine since 2019
What Water Heaters customers say
Nichole A
a year ago
Highly recommend! Cannot thank them enough for fixing my water heater. Elijah is very reliable and communicative. No hassle, no phone tag, transparent with cost and quick to repair the issue. I know who to call if I need help again!
Ruth Kirkwood
3 months ago
This company is excellent. They quickly and efficiently repaired the kitchen faucet that was loose.
John Walton
5 months ago
I've had three HVAC issues over the past two years. Each time I call, Elija or the office picks up the phone, and my problem is fixed in 24 hrs. Their solutions always feel correct and honest. I cannot recommend them more.
Adam Ayan
10 months ago
Elijah and Highlands Heating & AC were super helpful! Boiler failed over the weekend and Elijah was very responsive and helpful, getting us up and running right away. I would recommend him at HH&AC highly!
Justin Funk
a year ago
We highly recommend Highlands Heating & AC. They are extremely responsive, knowledgeable and do great work. Our boiler stopped working and Elijah was quick to respond after hours on a Friday. He installed a new boiler and heat pump hot water heater.
Tom
14 Aug 2024
He was very friendly. He gave me an honest explanation on why I shouldn't recharge my A/C unit and what he suggested made much more sense. He really took care of everything. He is very professional, always called me with updates. 5 stars is not enough — I give this company 10 stars.
Tankless Water Heaters FAQs
Does a tankless water heater really provide endless hot water?
Yes, within its flow capacity. A properly sized unit will run a shower indefinitely without going cold. The limit is simultaneous use — run three showers and a dishwasher at once and you can exceed its flow rate. That is why honest sizing for your household matters more than the brand.
How much does tankless water heater installation cost?
Nationally, installed costs typically run $2,500-$5,500 depending on fuel type, venting, and whether gas lines need upsizing — higher than a tank swap. The offset is a 20+ year lifespan and lower operating costs. We quote your exact price in writing before any work begins.
How long do tankless water heaters last?
Twenty years or more with annual descaling and basic care — roughly twice the life of a tank water heater. The heat exchanger is the key component, and keeping it free of scale is what gets you the full lifespan.
Does Maine’s cold groundwater affect tankless performance?
Yes, and it is the most important local factor. Winter inlet water in Maine can be 30+ degrees colder than in southern states, which reduces a unit’s effective flow rate. We size for Maine winter conditions so your system performs in January, not just on paper.
Will you talk me out of tankless if it is wrong for my home?
Yes — and we do it regularly. As a local company with no sales commissions, we have no reason to push the more expensive option. If your usage, fuel situation, or budget points to a quality tank heater instead, that is exactly what we will recommend.
More Services in Cumberland
Aces Highlands handles HVAC, plumbing, and electrical for Cumberland homeowners. Here is more of what we do nearby.
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Need Tankless Water Heaters in Cumberland?
Call our Cumberland team or get a free quote. We will get you scheduled and take care of it right the first time.
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